A unique multicolor black-blue-brown-white local variety of Jasper or microquartzite associated with manganese ores from Eastern Siberia.

Its colour is caused by:

black - manganese oxides (very often Braunite)
blue- alkaline amphiboles
brown- iron hydroxides
white - pure Quartz
Photos of natural/un-cut material from
Further Information
Mineral information:Irnimite information at
Significant Gem Localities
  • Khabarovsk Krai
    • Taikan Ridge
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